Quick tip, go full screen in your browser to maintain access to all the keyboard short-cuts. (click the title bar and hit F11 is the usual command I think)

As before any feedback on performance would be great, there is still room for gains but fir the time being I am happy. Would love to hear what someone with an i7 and a beast of a graphics card can achieve.

Cheers, should that be 3K rendered or 30K total in the scene? the culling is pretty fast so its more a factor of how many objects are visible in the frustum, could probably have 50,000 objects culled in only a couple of ms but on my machine 4-5 thousand seems to be the absolute max rendered objects.